Lock



June 1., 1926. 1,587,044

L. SOLOMON LOCK Filed Dec. 50,. 1925 s Sheets-Sheet 1 June 1 1926. 1,587,644

i... $OLOMON LOCK le 1925 I5 Sheets-Sheet 2 my W n-belljg?" Patented June 1, 1926 UNITED STATES PATENT OFIQE.

LOUIS SOLOMON, OF NEW YORK, N. Y., ASSIGNOR 0F ONE-FOURTH TO DAVID D. GLANZ, OF NEW YORK, N. Y.

LOOK.

Application filed December 30, 1925. Serial Nd. 78,307.

The object of my invention is the pro vision of a-key-less lock adapted to various closure purposes, and especially for use in conjunction with doors for houses, apart ments, etc., where special precaution against surreptitious entrance is a desideratum; and it consists, substantially, in the specific combination and arrangement of devices and component parts herein described and claimed, whereby the lock may be set to open from the exterior only by a prescribed selective number of push-buttons, and incidentally an alarm given in case of tampering by those unfamiliar with the requirements, all as hereinafter fully set forth.

In the accompanying drawings I illustrate a practical embodiment of the essential features of my invention as incorporated in a keyless lock designed more particularly for use on doors, although I do not limit myself in this respect, nor to the identical construction and arrangement of parts and appurtenances shown by way of exemplication, since changes may be made in minor details,

' and equivalent mechanical expedien'ts resorted to, with like results, and without departing from the spirit and intent of my invention.

Vith this understanding Fig. 1, represents an elevation of a portion of the outer side of a door provided with my keyless plural press button lock;

Fig. 2, is an elevation of the casing and interior of the lock as removed from the door and base plate, and taken upon plane of line 22, Fig. 4;

Fig. 3, is an; elevation of the inner face of the base plate, taken upon plane of line 33, Fig. 4;

Fig. 1, is a transverse section taken upon plane of line l t, Fig. 2, showing the door handle spindle as held against rotation;

Fig. 5, is a like transverse section showing the door handle spindle released;

Fig. 6, is a central longitudinal sectional elevation of the combination control cylinder and adjacent parts of the lock mechanism and casing;

Fig. 7, is a sectional detail taken upon plane of line T7, Fig. 6;

8, is a sectional detail, upon an enlarged scale, taken upon plane of line 8-8, Fig. 6, and illustrating the tripping of the electric alarm circuit closer;

Fig. 9, is a sectional detail, upon an en larged scale, taken upon plane of line 99, Fig. 3;

Fig. 10, is a sectional detail, also upon an enlarged scale, taken upon plane of line 1010, Fig. 8;

Fig. 11, is an elevation of the peripheral surface of the combination control cylinder as projected on the flat, to better show the corelation of the trip holes and their cover slides;

Fig. 12, is a transverse vertical sectional elevation taken upon plane of line 1212, Figs. 1 and 2;

Fig. 18, is a similar View taken upon plane of line 1313, Figs. 1 and 2.;

Fig. 1 1, is a sectional detail, upon an enlarged scale, showing the means for effecting the adjustment of the latch tripon the combination control cylinder;

Fig. 15, is a sectional detail showing-the means of attachment of the base plate of the casing to the main or box portion thereof;

Fig. 16, is a sectional detail showing the mounting of the interior push rod for effecting the release of the bolt latch lever. The type of lock shown is attached to the inner side of a door D, by means of screws S, S, extending through the front plate C, and rear plate C, of the casing, as indicated more particularly in Figs. 1 and 5, of the drawings. The main portion C, of the casing consists of a rectangular box 0, formed with a bottom 0, and end flanges 0, 0 to which latter is attached a top or cover plate G as by means of screws 8, 8, Figs. 2 and 6,the aforesaid back plate C, being secured to the main or box portion of the casing C, by screws 8), s, as shown more particularly in Fig. 15, of the drawlngs.

B, is a reciprocatory bolt mounted between parallel guiding and supporting flanges 0 0 on the inner side. of the box casing C, and shot in either direction by a thrust arm h, engaging with the sides of a recess 79, formed for the purpose in the rear extremityof the bolt B, as shown in Fig. 2, said thrust arm being rigidly attached to handle spindle H, and the latter being provided at either extremity with the usual handle knobs h, if, as shown more particularly in Fig. 4, of the drawing. Also rigidly attached to the handle spindle H, adjacent to the thrust arm h, and extending at right angles thereto, is a detent arm h for engagement with the shoulder Z, of a spring latch lever L, fulcrumed between lugs 0 0 on the bottom plate 0, of the box casing C. A spring Z, bearingagainst the rear side of said latch lever L, tends constantly to hold the latter in engagement with said detent arm h when the bolt B, is advanced as in Fig. 2, of the drawings, thereby preventing retractile movement of said bolt under normal conditions.

Obviously the rocking back of the spring latch lever L, from engagement with the detent arm h will admit of the turning of the handle spindle H, and the retraction of the bolt B, by means of the thrust arm 71, and this may be accomplished from the exterior side of the door through the medium of a prescribed manipulation of the plural push button mechanism hereinafter described, or from the inner side of the door D, by means of a single independent push rod 2', shown in detail in Fig. 16, of the drawings.

Thus while the door is practically impregnable from the exterior unless to one conversant with the prescribed combination and manipulation of my plural push button mechanism, it may be quickly and conveniently unlocked or reloclred from the interior without disturbing the set of the unlocking mechanism operatable only from the exterior of the door.

The controlling element in said keyless lock mechanism is the rotatable test guard cylinder G, which is loosely mounted on a horizontal shaft or spindle E, the extremities of which rest in and are supported upon recessed bracket bearings c 0 formed for the purpose, one, 0 on the end plate 0 and the other, 0, on the front plate C, as will be understood by reference more particularly to Figs. 2 and 6, of the drawings. The recesses in said bracket bearings 0 c, are open at top, so that, upon occasion, as when setting or re-setting the operative combination, both the spindle E, and the test guard cylinder G, may be removed from and reinstated in the casing when the top plate is removed temporarily for the pur pose.

The peripheral surface of the guard cylinder G, is shown as extended on the flat in Fig. 11, of the drawings, to facilitate an understanding of its structure and functions, by reference to which figure taken in conjunction with Fig. 8, it will be seen that the said cylinder is formed with a series of parallel longitudinal flanges g, g, the adjacent members of which form grooves between their opposed edges for the retentive support of the flanged bases of cover slides 73, 76, which are utilized for the purpose of preventing the entrance of the inner ends 79, of the push button rods into any of the test holes 9, thus protected,-

said test holes 9, being arranged in series between the longitudinal flanges g, 9. Thus by way of exemplification, said Fig. 11, shows hole No. 1, in the first row of test holes g, as covered; hole 3 in the second row thus covered, and also hole 5 in the third row,the combination selected and thus set being for 1, 3 and 5; and it being understood, of course, that any other plural selection of numbers might be resorted to within the limit and capacity of the cylinder G, which in the present case would be a maximum of seven numbers, i. e. from O to 6, which is ample for all practical purposes of ordinary use, although a greater or less number of rows of test holes may be provided within the scope and intention of my invention in this particular, which contemplates broadly any plurality of rows of test holes 9, 9, according to special requirements of use.

As a matter of convenience, the test holes 9, g, and the rows thereof, are numbered consecutively for convenience in effecting a desired operative combination.

A coiled spring j, connects one end of the test guard cylinder G, with the spindle E, and tends constantly to cause an arm y on the other end of said cylinder to contact with a stop 0 on the back plate C, of the casing, as shown in Fig. 4, of the drawings, thereby prescribing the normal position of said cylinder.

A ratchet wheel m is rigidly attached to the extremity of the test guard cylinder G, adjacent to the coiled spring j, and engaging therewith is a pawl m, pivotally mounted upon and between suspender bearings 0 0 on the under side of the cover plate C.

Positioned within the test guard cylinder G, and rigidly attached to the spindle E,

is a counterweight Vi extending longitudi nally for the full length of the rows of test holes 9, as shown more particularly in Fig. 6, of the drawings; and also rigidly attached to said spindle E, but exterior to the test guard cylinder G, is a circuit closure arm 6, for contactual engagement with the terminals a, a, of an electric circuit a, a, in which. is interposed an electric bell or equivalent alarm device A, as indicated in Fig. 6, of the drawings. The upper portion of the counterweight lV, constitutes a full length trip arm or rocker w. Hence in the event of an inner end 79, of one of the push button rods P, protruding through an unprotected test hole 9, in the cylinder G, as shown in Fig. 8, the spindle E, will be rotated in part and sufiic-iently to cause the circuit closure are e, to contact with the terminals a, a, and sound an alarm. Upon the release and automatic retraction of the push button rod P, involved in this action, the counterweight TV, will insure the return of thespindle to normal position.

As will be seen by reference more particularly to Figs. 12 and 13, of the drawings, each push button rod P, is supported in bearings in the rear of the recessed door plate (Z, in which the enumerated buttons 79', are located and displayed, and also on the base plate C, and are each provided with a shoulder 29 which rest normally against said base plate C, being held thereagainst by the upper bifurcated end of a retractile leaf spring 9, attached at their lower extremities to said base plate C.

In order to prevent the inward projection of more than one push button rod P, at a time, each leaf spring 9, is provided with a feeler pin the end of which is in alignment with a longitudinal slot 0", formed by and between the anti-friction roller: channel r, and its cover plate 1"", said channel 9", being formed in the upper portion of a bracket R, secured to the base plate C, and extending the full length of the row of push button rods as shown more particularly in Figs. 3, 9 and 10, of the drawings. The channel 1", is filled with anti-friction rollers 7, except that suflicient looseness and play is provided therebetween for the interposition of a single feeler pin (1', between adjoining rollers as indicated at the right hand end of the channel 7", in said Fig. 3, this intrusion insuring the close contact of the other rollers with each other and with the ends of the channel until the feeler pin is withdrawn.

Thus, obviously, while one feeler pin 9, is within the channel 1", it will prevent the intrusion of others, so that two or more push button rods cannot be operated simultaneously.

A trip arm 9 for engagement with the upper end of the spring latch lever L, is mounted adjustably upon the test guard cylinder G. That is to say, said trip arm 9 may be moved and set as related to the particular row of test holes 9, in which a cover slide 70, is positioned to close the hole corresponding to the last number in the combination for which the cylinder is set, as for instance hole 5 in the third row, as provided for the combination illustrated in Fig. 11, so that upon the engaging of the end 39, of the proper push button rod P, with said cover slide 70, and the consequent partial rotation of the cylinder G, the trip arm 9*, will contact with the latch lever L, and rock it over against the resistance of the spring Z, as shown in Fig. 5, sufficiently to release the detent arm 7t, and permit the retraction of the bolt B, by means of the thrust arm IL, on the handle spindle H.

As shown more particularly in Fig. 14, of the drawings, this adjustment of the trip arm 9*, is provided for by mounting it on a ring 9 positioned on the cylinder G, over an annular groove 9, in the periphery thereof, the set screw 9 binding against the bot tom of the groove, to secure the parts in desired position.

Upon the retraction of the bolt B, as above set forth, the inclined plane 6, provided for the purpose on the upper side thereof, will raise a rod m connected with the pawl m, suihciently to release the latter from the ratchet wheel m, and thereby allow the spring j, to return the cylinder G, to normal position with its arm 9 resting against the stop 0 Not only the numbers constituting the operative combination must be known, but their sequence also, in order to successfully manipulate the cylinder G, to release the bolt B, when thrust outward as in Fig. 2. Thus by way of example, and referring again to the combination 1, 3 and 5 illustrated in Fig. 11, of the drawings, the pressing inward of push button designated 1 acting against the slide 7c, covering the test hole 1 in the first row on the periphery of the cylinder G, will cause the latter to advance from normal a distance equal to the space between adjoining rows, or from row 1 to row 2, the pawl m, admitting this degree of movement but preventing retraction. Then if button 3 be next pressed in.- ward it will encounter the slide 70, covering the hole 3, in row 2, of the cylinder, thereby bringing row 3 into position, so that the subsequent action of press button 5 will result in contact with the slide 70, covering the hole 5, in said row 3, thus causing the trip arm 9, to rock the level L, and release the bolt B. Should any press button other than 3 be pressed inward after the initial movement of push button 1, the inner end of the push button rod will enter an uncovered hole 9, in the periphery of the cylinder G, resulting in the rocking of the counterweight lV, and the sounding of an alarm as hereinbefore set forth, and also, by reason of the rigid connection between said counterweight and the spindle E, causing the arm 6 thereof, acting through the medium of the connection 6 to raise the pawl m, from the ratchet on, so that the coiled spring j, can return the cylinder G, to its original position, with its arm 9 resting against the stop 0 lVhat I claim as my invention and desire to secure by Letters Patent, is

1. In locking mechanism of the character designated, the combination of a plurality of push button rods, means for effecting their automatic retraction, a test guard cylinder formed with parallel rows of test holes and rotatably mounted on a spindle, said spindle loosely mounted on stationary bearings, cover slides mounted upon the periphery of said cylinder, a trip arm on said cylinder, a latch lever engaging with a detent arm and adapted to be actuated by said. trip arm, said detent arm, a bolt thrust arm on the handle spindle, and a bolt controlled thereby, substantially in the manner and for the purpose set forth.

2. In locking mechanism of the character designated, the combination ol a plurality o'l push button rods, means for effecting their automatic retraction, a test guard cylinder formed with parallel rows of test holes and rotatably mounted on a spindle, said spindle loosely mounted on stationary open recess bearings, cover slides mounted upon the periphery of said cylinder, a trip arm on said cylinder, a latch lever engaging with a detent arm and adapted to be actuated by said trip arm, said detent arm, a bolt thrust arm on the handle spindle, and a bolt controlled thereby, substantially in the manner and for the purpose set forth.

3. In locking mechanism of the character designated, the combination of a plural ity of push button rods, means for etlecting their automatic retraction, a test guard cylinder formed with parallel rows of test holes and rotatably mounted on a spindle, said spindle loosely mounted on stationary bearings, cover slides mounted upon the periphery of said cylinder, a trip arm on said cylinder, a latch lever engaging with a detent arm and adapted to be actuated by said trip arm, said detent arm, a bolt thrust arm on the handle spindle, and a bolt controlled thereby, together with a spring connection interposed between said cylinder and its supporting spindle, and an arm on said cylinder adapted to contact with a stop prescribing the normal position of said cylinder, substantially in the manner and for the purpose set forth.

l. In locking mechanism of the character designated, the combination of a plurality of push button rods, means for effecting their automatic retraction, a test guard cylinder formed with parallel rows of test holes and rotatably mounted on a spindle, said spindle loosely mounted on stationary bearings, cover slides mounted upon the periphery of said cylinder, a trip arm on said cylinder, a latch lever engaging with a detent arm and adapted to be actuated by said trip arm, said detent arm, a bolt thrust arm on the handle spindle, and a bolt controlled thereby, together with a spring connection interposed between said cylinder and its supporting spindle, an arm on said cylinder adapted to contact with a stop prescribing the normal position of said cylinder, a ratchet wheel on said cylinder and a pawl engaging therewith, substantially in the manner and for the purpose set forth.

5. In locking mechanism of the character designated, the combination of a plurality of push button rods, means for effecting their automatic retraction, a test guard cylinder formed with parallel rows of test holes and rotatably mounted on a spindle, said spindle loosely mounted on stationary bearings, cover slides mounted upon the pe riphery of said. cylinder, a trip arm on said cylinder, a latch lever engaging with a detent arm and adapted to be actuated by said trip arm, said detent arm, a bolt thrust arm on the handle spindle, and a bolt controlled thereby, together with a spring connection interposed between said cylinder and its supporting spindle, an arm on said cylinder adapted to contact with a stop prescribing the normal position of said cylinder, means for adjusting said contact arm with relation to the rows of test holes on the cylinder, a ratchet wheel on said cylinder and a pawl engaging therewith, substantially in the manner and for the purpose set forth.

6. In locking mechanism of the character designated, the combination of a plurality of push rods, retract-ile springs connected therewith, each spring formed with a feeler pin, anti-friction balls opposed to said feeler pins, a test guard cylinder formed with parallel rows of test holes and rotatably mounted on a spindle, said spindle loosely mounted on stationary bearings, cover slides mounted upon the periphery of said cylinder, a trip arm on said cylinder, a latch lever engaging with a detent arm and adapted to be actuated by said trip arm, said detent arm, a bolt thrust arm on the handle spindle and a bolt controlled thereby, substantially in the manner and for the purpose set forth.

7. In locking mechanism of the character designated, the combination of a plurality of push rods, means for effecting their automatic retraction, a test guard cylinder formed with parallel rows of test holes and rotatably mounted on a spindle, said spindle loosely mounted on stationary bearings, cover slides mounted upon the periphery of said cylinder, a ratchet wheel on said cylinder and a pawl engaging therewith, a spring connection interposed between said cylinder and its supporting spindle, an arm on said cylinder adapted to contact with a stop prescribing the normal position of said cylinder, a trip arm on said cylinder, a latch lever engaging with a spring detent arm and adapted to be actuated by said trip arm, said detent arm, a bolt thrust arm on the handle spindle, a bolt controlled thereby and formed with an inclined plane surface, and a rod connected with said pawl and bearing against said inclined plane surface on the bolt, for the purpose and substantially in the manner set forth.

8. In locking mechanism of the character designated, the combination of a plurality of push button rods, means for effecting their automatic retraction, a test guard cylinder formed with parallel rows of test holes and rotatably mounted on a spindle, said spindle loosely mounted on stationary bearings, cover slides mounted upon the periphery of said cylinder, a counterweight positioned within the cylinder and rigidly attached to said spindle, and an arm rigidly attached to said spindle external to the cylinder, for the purpose and substantially in the manner set forth.

9. In locking mechanism of the character designated, the combination of a plurality of push rods, means for effecting their automatic retraction, a test guard cylinder formed with parallel rows of test holes and rotatably mounted on a spindle, said spindle loosely mounted on stationary bearings, cover slides mounted upon the periphery of said cylinder, a ratchet wheel on said cylinder and a pawl engaging therewith, a spring connection interposed between said cylinder and its supporting spindle, an arm on said cylinder adapted to contact with a stop prescribing the normal position of said cylinder, a trip arm on said cylinder, a latch lever engaging with a spring detent arm and adapted to be actuated by said trip arm, said detent arm, a bolt thrust arm on the handle spindle, a bolt controlled thereby and formed with an inclined plane surface, and a rod connected with said pawl and bearing against said inclined plane surface on the bolt, together with independent means for releasing said spring latch lever, for the purpose and substantially in the manner set 

